trap1

a contrivance used for catching game or other animals, as a mechanical device that springs shut suddenly.

2.

any device, stratagem, trick, or the like for catching a person unawares.

3.

any of various devices for removing undesirable substances from a moving fluid, vapor, etc., as water from steam or cinders from coal gas.

4.

Also called air trap. an arrangement in a pipe, as a double curve or a U -shaped section, in which liquid remains and forms a seal for preventing the passage or escape of air or of gases through the pipe from behind or below.

5.

traps, the percussion instruments of a jazz or dance band.

6.

Trapshooting, Skeet. a device for hurling clay pigeons into the air.

7.

the piece of wood, shaped somewhat like a shoe hollowed at the heel, and moving on a pivot, used in playing the game of trapball.

Also called mousetrap, trap play. Football. a play in which a defensive player, usually a guard or tackle, is allowed by the team on offense to cross the line of scrimmage into the backfield and is then blocked out from the side, thereby letting the ball-carrier run through the opening in the line.

12.

Slang. mouth:

Keep your trap shut.

13.

Chiefly British. a carriage, especially a light, two-wheeled one.

verb (used with object), trapped, trapping.

14.

to catch in a trap; ensnare:

to trap foxes.

15.

to catch by stratagem, artifice, or trickery.

16.

to furnish or set with traps.

17.

to provide (a drain or the like) with a trap.

18.

to stop and hold by a trap, as air in a pipe.

19.

Sports. to catch (a ball) as it rises after having just hit the ground.

1, 2. T rap , pitfall , snare apply to literal or figurative contrivances for deceiving and catching animals or people. Literally, a trap is a mechanical contrivance for catching animals, the main feature usually being a spring: a trap baited with cheese for mice. Figuratively, trap suggests the scheme of one person to take another by surprise and thereby gain an advantage: a trap for the unwary. A pitfall is (usually) a concealed pit arranged for the capture of large animals or of people who may fall into it; figuratively, it is any concealed danger, error, or source of disaster: to avoid the pitfalls of life. A snare is a device for entangling birds, rabbits, etc., with intent to capture; figuratively, it implies enticement and inveiglement: the temptress' snare.

"contrivance for catching unawares," late Old English træppe "snare, trap," from Proto-Germanic *trap- (cf. Middle Dutch trappe "trap, snare"), related to Germanic words for "stair, step, tread" (cf. Middle Dutch, Middle Low German trappe, treppe, German Treppe "step, stair"). Probably akin to Old French trape, Spanish trampa "trap, pit, snare," but the exact relationship is uncertain. The connecting notion seems to be "that on which an animal steps." Sense of "deceitful practice, trickery" is first recorded c.1400. Sense in speed trap recorded from 1906. Slang meaning "mouth" is from 1776. Trap door "door in a floor or ceiling" (often hidden and leading to a passageway or secret place) is first attested late 14c.

v.

c.1400, "ensnare (an animal), catch in a trap; encircle; capture," from trap (n.) or from Old English betræppan. Figurative use is slightly earlier (late 14c.). Related: Trapped; trapping.

trans

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.Copyright (C) 2007 by HarperCollins Publishers.Cite This Source

trap in Technology

1. A program interrupt, usually an interrupt caused by some exceptional situation in the user program. In most cases, the OS performs some action, then returns control to the program. 2. To cause a trap. "These instructions trap to the monitor." Also used transitively to indicate the cause of the trap. "The monitor traps all input/output instructions." This term is associated with assembler programming ("interrupt" or "exception" is more common among HLL programmers) and appears to be fading into history among programmers as the role of assembler continues to shrink. However, it is still important to computer architects and systems hackers (see system, sense 1), who use it to distinguish deterministically repeatable exceptions from timing-dependent ones (such as I/O interrupts). [Jargon File]